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NTSB Report
May 23, 1993 · Cessna 172N · N4881G
Buena Vista, CO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 23, 1993
Injury Outcomes
No injuries (2 uninjured)
Location
Buena Vista, CO
Aircraft
Cessna 172N
Tail Number
N4881G
Operator
Canon Air Service
Injuries
None
Aircraft Damage
Destroyed
NTSB Number
DEN93LA061
THE PILOT SAID THAT FROM THE AIR, THE WIND APPEARED TO BE DIRECTLY ACROSS RUNWAY 15 'WITH POSSIBLY A LEFT QUARTERING TAILWIND.' AFTER SELECTING 20 DEGREES OF FLAPS, HE NOTICED HIS AIRSPEED HAD INCREASED FROM 80 KNOTS TO 115 KNOTS. HE CLOSED THE THROTTLE, SLOWED BACK TO 80 KNOTS, AND SELECTED WHAT HE THOUGHT WAS 30 DEGREES OF FLAPS. AS HE FLARED THE AIRPLANE BETWEEN 70 AND 75 KIAS, THE PILOT SENSED HE WAS GOING TOO FAST. THE AIRPLANE WAS THEN 'SHARPLY BLOWN DOWN ONTO THE RUNWAY,' LEFT OF CENTERLINE, AND BOUNCED. HE APPLIED FULL THROTTLE IN AN ATTEMPT TO GO AROUND, AND NOTICED THE FLAP HANDLE WAS IN THE 40 DEGREE DETENT. HE RETRACTED THE FLAPS, BUT THE AIRPLANE DRIFTED OFF THE LEFT SIDE OF THE RUNWAY. HE SAID THE AIRPLANE LIFTED OFF BUT NEVER GOT OUT OF GROUND EFFECT. IT WENT DOWN AN EMBANKMENT, STRUCK A DITCH, AND NOSED OVER.
NTSB Probable Cause
A DOWNDRAFT AND THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE. FACTORS WERE: A CROSSWIND AND THE INADVERTENT SELECTION OF ADDITIONAL FLAPS.
Full Narrative
THE PILOT SAID THAT FROM THE AIR, THE WIND APPEARED TO BE DIRECTLY ACROSS RUNWAY 15 'WITH POSSIBLY A LEFT QUARTERING TAILWIND.' AFTER SELECTING 20 DEGREES OF FLAPS, HE NOTICED HIS AIRSPEED HAD INCREASED FROM 80 KNOTS TO 115 KNOTS. HE CLOSED THE THROTTLE, SLOWED BACK TO 80 KNOTS, AND SELECTED WHAT HE THOUGHT WAS 30 DEGREES OF FLAPS. AS HE FLARED THE AIRPLANE BETWEEN 70 AND 75 KIAS, THE PILOT SENSED HE WAS GOING TOO FAST. THE AIRPLANE WAS THEN 'SHARPLY BLOWN DOWN ONTO THE RUNWAY,' LEFT OF CENTERLINE, AND BOUNCED. HE APPLIED FULL THROTTLE IN AN ATTEMPT TO GO AROUND, AND NOTICED THE FLAP HANDLE WAS IN THE 40 DEGREE DETENT. HE RETRACTED THE FLAPS, BUT THE AIRPLANE DRIFTED OFF THE LEFT SIDE OF THE RUNWAY. HE SAID THE AIRPLANE LIFTED OFF BUT NEVER GOT OUT OF GROUND EFFECT. IT WENT DOWN AN EMBANKMENT, STRUCK A DITCH, AND NOSED OVER.
Flight
Event TypeAccident
Event Time12:30 MDT
Nearest AirportBuena Vista (0nm)
Runway15
Runway Length9185 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172N
Tail NumberN4881G
Aircraft CategoryAir
DamageDestroyed
OperatorCanon Air Service
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-H2AD · Reciprocating · 160
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 45 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind250° @ 20 kt, gusting 35 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point64 F / 0 C
Altimeter29.00 inHg
Weather SourcePILO